Free online tools. No uploads. No login.
Compress, convert, and create — all free, forever.
Your files are processed in your browser and are not uploaded. Some tools first download an engine or AI model; live speech-to-text uses your browser's own speech service.
Trending Tools
View allVideo Background Remover
Remove or blur the background behind a person in a video, swap it for a colour, green screen or picture, or export a transparent WebM. Runs in your browser; nothing is uploaded.
Background Noise Remover
Remove background noise, wind, traffic, hiss and hum from voice recordings with an AI model that runs on your device. Nothing is uploaded and no account is needed.
Video Merger
Merge several video clips into one MP4 in the order you choose. Different sizes are fitted with black bars; matching clips join without re-encoding. Runs in your browser — no upload.
Text to Handwriting
Turn typed text into realistic handwriting on ruled or plain paper, with handwriting fonts (incl. Devanagari), ink color and natural jitter. Export PNG or multi-page PDF. Private.
Audio to Text
Transcribe audio or video to text and subtitles, entirely on your device. Export SRT, VTT, ASS and more. No upload, no account.
Text to Speech
Read text aloud free with your device's voices. English, German, French, Spanish, Italian, Ukrainian and Japanese text can also be saved as MP3 or WAV with a studio voice. No API key, no upload, no cost.
Signature Maker
Draw a signature with your mouse, finger, or stylus, or type your name in a handwriting font, then export it as a transparent PNG or SVG.
Audio to MIDI Converter
Convert MP3, WAV or a recording of piano, guitar or voice into a MIDI file. Detects chords and melodies on your device; nothing is uploaded.
Audio Spectrum Analyzer
Visualize audio frequencies in real time as bars, waveforms, or circular spectra. Works with audio files or live microphone input — runs in your browser.
Equation Solver
Solve linear, quadratic, and cubic equations plus 2×2 and 3×3 systems — with real and complex roots, the discriminant, and the vertex. Free, private, with steps in your browser.
PDF to EPUB
Turn a text PDF into a reflowable EPUB for Kindle, Kobo and Apple Books — paragraphs rebuilt, headers and page numbers removed, chapters and a table of contents added. Runs in your browser.
Tone Generator
Generate pure tones from 1 Hz to 22 kHz, plus white, pink and brown noise — left/right speaker test, note presets, play live or download WAV/MP3.
Why is it free?
Files stay on your device
The tools run in your browser, so your files aren't uploaded and there are no servers processing them for us to pay for.
No sign-up
No login. Your files never leave your device, so how big a file you can open depends on your device's memory.
Free forever
AI has made building these tools nearly free. We pass those savings directly to you.
PDF Tools
View all 27 →Sign PDF
Draw, type, or place a signature anywhere on a PDF and download the signed file — fully in your browser. No upload, no account, no watermark.
PDF to Image (JPG, PNG, WebP)
Convert every page of a PDF into JPG, PNG, or WebP images at your chosen resolution. Download pages individually or all at once as a ZIP. Files never leave your browser.
PDF to Word
Turn a PDF into a Word (.docx) file. Extracts the text — scanned pages too, with on-device OCR. All processing happens in your browser.
PDF Redactor
Black out sensitive text in a PDF for good. Pages are flattened to images so the hidden content is permanently destroyed — not just covered. Runs entirely in your browser.
PDF Compare
Free PDF compare with no upload: see what changed between two versions as a word-level text redline or a visual diff, in your browser.
PDF Compressor
Compress PDF files to reduce their size. Choose a quality level — higher compression means smaller files but lower image fidelity.
Image Tools
View all 49 →Text to Handwriting
Turn typed text into realistic handwriting on ruled or plain paper, with handwriting fonts (incl. Devanagari), ink color and natural jitter. Export PNG or multi-page PDF. Private.
Twibbon / Frame Maker
Add a campaign or event frame (transparent PNG) to your profile photo — drag and zoom behind the frame, export a square image. No account, no upload, no watermark.
Avatar Maker
Create clean initials avatars — pick colors, shape and size, and export a PNG.
3D Model Viewer (STL, OBJ, GLB)
View STL, OBJ, PLY, GLB, and GLTF 3D models in your browser with orbit, zoom, and pan, plus wireframe and auto-rotate. Rendered locally with WebGL — your model is never uploaded.
OCR — Image to Text Extractor
Extract text from images, screenshots, scanned documents and PDFs (or save a searchable PDF) with PP-OCRv5, running entirely in your browser. Reads Latin, Chinese, Japanese, Korean, Cyrillic, Arabic, Devanagari, Thai, Greek, Tamil and Telugu script.
Image Watermark
Add a text or logo watermark to one or many photos — position, opacity, rotation, and diagonal tiling. Batch export, no upload, no extra branding.
Generator Tools
View all 135 →Text to Speech
Read text aloud free with your device's voices. English, German, French, Spanish, Italian, Ukrainian and Japanese text can also be saved as MP3 or WAV with a studio voice. No API key, no upload, no cost.
Audio Spectrum Analyzer
Visualize audio frequencies in real time as bars, waveforms, or circular spectra. Works with audio files or live microphone input — runs in your browser.
Online Tally Counter
A click counter that saves automatically in your browser. Add multiple counters with custom labels and steps. Count people, reps, laps, inventory, anything.
Speech to Text Dictation
Live voice transcription using your browser's built-in speech recognition. Supports 30+ languages. Dictate notes, emails, or transcripts hands-free.
Barcode Generator
Generate EAN-13/8, UPC, Code 128, Code 39, ITF-14, ISBN, GS1-128, Data Matrix, PDF417 and QR barcodes with correct check digits — download as PNG or SVG. Free for commercial use.
Screen Recorder
Record your screen, a window, or a browser tab with system audio and microphone. No download, no account, no watermark — the recording never leaves your browser.
Text Tools
View all 53 →Typing Speed Test (WPM)
Measure your typing speed (WPM) and accuracy with timed, word-count, quote, custom, and zen tests. Live WPM, raw speed, consistency, a results graph, multiple languages, and per-character feedback — all in your browser.
ASCII Tree Generator
Turn an indented list into a clean folder tree (├── └──) for READMEs and docs. Unicode or plain-ASCII output. Runs entirely in your browser.
Fancy Text Generator
Turn plain text into stylish Unicode fonts — bold, italic, script, bubble, and more — for Instagram, TikTok, Discord, and bios. Click any style to copy.
Speed Reader (RSVP)
Read faster with Rapid Serial Visual Presentation: your text flashes one word at a time at an adjustable 100–1200 WPM, with the optimal-recognition-point letter centered. Paste, set a speed, and press play. All in your browser.
Text Case Converter
Convert text to UPPERCASE, lowercase, Title Case, camelCase, snake_case, and more.
Readability Score Checker
Score your writing with Flesch Reading Ease, Flesch-Kincaid Grade, Gunning Fog, SMOG, Coleman-Liau, and ARI. See the reading level instantly.
Converter Tools
View all 122 →Audio Loudness Normalizer (LUFS)
Measure your audio's loudness to the ITU-R BS.1770 standard (LUFS) and normalize it to a streaming, podcast, or broadcast target — with a true-peak ceiling so it never clips. Decodes MP3/WAV/M4A/OGG/FLAC and exports WAV, FLAC, MP3, M4A or OGG, all in your browser.
Persian Date Converter (Jalaali / Shamsi)
Convert Persian (Iranian Shamsi / Jalali) dates to English Gregorian dates and back instantly, with weekday, age in Jalaali years, Afghan Dari month names and Persian numerals. Free, private, and runs entirely in your browser.
Mono ↔ Stereo Converter
Convert audio between mono and stereo, swap left/right channels, or split a stereo file into separate channels — all in your browser.
EML Email Viewer
Open and read .eml email files online — view the message, headers and attachments without Outlook or any email client. Parsed locally in your browser; nothing is uploaded.
Video Trimmer
Cut a clip from any video by dragging start and end handles. Fast lossless trimming or frame-precise mode. Runs entirely in your browser.
Video Compressor
Compress video files to reduce their size. Choose quality, resolution, and output format. All processing is local.
Learn & Visualize
View all 19 →Interactive Periodic Table
Tap any element for its atomic number, mass, category, group, period and electron configuration. Searchable, colour-coded, with localized element names. Free and offline-ready.
Ratio Calculator
Simplify a ratio, solve a proportion (a:b = c:x), or split a total into ratio parts.
Algorithm Visualizer
Watch sorting, pathfinding, and classic algorithms come to life — bubble/quick/merge sort, Dijkstra/A*/BFS on an interactive maze grid, plus binary search, the Sieve, N-Queens and Game of Life. Step-by-step animation, synchronized pseudocode, live metrics, and a side-by-side race mode. Mobile-friendly and 100% in your browser.
Graphing Calculator
Plot one or more functions y=f(x) on an interactive zoom-and-pan grid, compare curves, and export the graph as a PNG. Free, private, no login — a lightweight Desmos alternative.
Matrix Calculator
Add, subtract, multiply, transpose, invert, and reduce matrices, plus determinant, rank, eigenvalues, and solving Ax = b — up to 8×8, with one-tap copy. Free and private.
Scientific Calculator
A full scientific calculator — trigonometry (DEG/RAD/GRAD), logarithms, powers and roots, factorial, nCr/nPr, constants, memory and answer history. Type or tap, with a live result. 100% in your browser.
Health & Fitness
View all 17 →Macro Calculator
Calculate your daily calories and protein/carb/fat macros for cutting, maintaining or bulking.
One-Rep Max Calculator
Estimate your 1RM from a weight and reps (optionally reps in reserve) with six formulas, plus a weight-for-reps table and training percentages.
Pregnancy Due Date Calculator
Estimate your due date from your last period, conception, ultrasound, or IVF transfer — with gestational age, trimester milestones, a countdown, and an add-to-calendar reminder. Private and free.
Ovulation Calculator
Estimate your ovulation date and fertile window from your last period and cycle length — with peak conception days, your next period, a pregnancy-test date, the due date if you conceive, and your next three cycles. Private and free.
Ideal Weight Calculator
Find your healthy weight range for your height plus the classic ideal-body-weight formulas (Devine, Robinson, Miller, Hamwi). Add your weight for your BMI and the gap to a healthy weight. Metric or imperial, private and free.
Body Fat Calculator
Estimate your body-fat percentage with the U.S. Navy tape-measure method or a BMI-and-age estimate — with your fitness category, fat mass, and lean body mass. Metric or imperial, private and free.